Answer:
c
Step-by-step explanation:
if I understand this right, then the expression is
2×sqrt(28) - 5×sqrt(63)
let's look for squared factors in the numbers under the square roots.
28 = 4×7 (4 is a squared number)
63 = 9×7 (9 is a squared number)
so,
2×sqrt(4×7) - 5×sqrt(9×7) =
= 2×2×sqrt(7) - 5×3×sqrt(7) = 4×sqrt(7) - 15×sqrt(7) =
= (4 - 15)×sqrt(7) = -11×sqrt(7)
Answer:
40c +20
Step-by-step explanation:

Expand

= 
Answer:
6.2813
Step-by-step explanation:
If you minus 27.31 of 23%. 23% would have to be changed into a decimal or whole number.
After that, you would want to check your answer on a calculator, which I usually do.
Answer:
FORMULA USED-
NUMBER OF SUBSETS OF A SET WITH n ELEMENTS= 2^n
Here our set is { onions, garlic, carrots, brocoli, shrimp, mushrooms, zucchini, green pepper}
Different variations available for ordering pasta with tomato sauce= 28 = 256 ( As here n= 8)
Pani would pay $59 if she gets a discount of $3 on each shirt and $3 on each jeans
Step-by-step explanation:
Given
Price of shirt = $12
Price of jeans = $19
Price of shirt after $3 discount = 12-3 = $9
Price of jeans after 3 discount = 19-3 = $16
So
The total money Pani has to pay will be:

Pani would pay $59 if she gets a discount of $3 on each shirt and $3 on each jeans
Keywords: Discount, percent
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